CVE-2026-59691

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-07-09. a secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

A fix is available — apply it.

A heap buffer overflow vulnerability was found in GStreamer's rfbsrc plugin. When a client connects to a malicious RFB/VNC server that advertises a 16bpp framebuffer and sends Hextile-encoded updates, the Hextile background fill path writes 32-bit pixel values into a buffer allocated for 16-bit pixels. This type mismatch causes an out-of-bounds heap write that can lead to denial of service (process crash) and potential memory corruption.

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
32(Track)
EG Risk 32/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity71% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
25%
KEV
Not listed

Published

July 9, 2026

Last Modified

August 19, 2026

Advisory Details (4)

Auto-updated Jul 9, 2026
Patch available. Sources: redhat.
generic

GStreamer / gstreamer · GitLab

https://gitlab.freedesktop.org/gstreamer/gstreamer/-/work_items/5173
generic

Sign in · GitLab

https://gitlab.freedesktop.org/gstreamer/gstreamer-security/-/merge_requests/100
redhat

2497343 – (CVE-2026-59691) CVE-2026-59691 gstreamer: gstreamer: rfbsrc/librfb Hextile heap out-of-bounds write with 16bpp framebuffer

https://bugzilla.redhat.com/show_bug.cgi?id=2497343
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-59691

Vendor Advisories for CVE-2026-59691(10)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(11)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatgstreamer1-plugins-bad-free-0:1.16.1-4.el8_4.42026-08-19redhat
redhatgstreamer1-plugins-bad-free-0:1.18.4-9.el9_2.52026-08-19redhat
redhatgstreamer1-plugins-bad-free-0:1.10.4-7.el7_92026-08-14redhat
redhatgstreamer1-plugins-bad-free-0:1.16.1-4.el8_6.42026-08-13redhat
redhatgstreamer1-plugins-bad-free-0:1.16.1-4.el8_8.42026-08-13redhat
redhatgstreamer1-plugins-bad-free-0:1.22.1-6.el9_4.62026-08-13redhat
redhatgstreamer1-plugins-bad-free-0:1.22.12-5.el9_6.62026-08-13redhat
redhatgstreamer1-plugins-bad-free-0:1.24.11-3.el10_0.62026-08-13redhat
redhatgstreamer1-plugins-bad-free-0:1.22.12-7.el9_8.32026-08-03redhat
redhatgstreamer1-plugins-bad-free-0:1.16.1-9.el8_10.12026-07-30redhat
redhatgstreamer1-plugins-bad-free-0:1.26.7-2.el10_2.62026-07-28redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
gst-plugins-bad1.01.18.4-3 ... 1.29.2-2 (110 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
gst-plugins-bad1.01.22.0-4 ... 1.29.2-2 (94 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
gst-plugins-bad1.01.26.10-1 ... 1.29.2-2 (37 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
gst-plugins-bad1.01.26.10-1 ... 1.28.4-1 (30 versions)1.28.5-1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(2)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 30× in last 7d / 193× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 268 total refreshes for this CVE.

  1. 2026-08-30 06:57 UTCEG score recompute
  2. 2026-08-30 06:57 UTCVendor advisory
  3. 2026-08-30 06:57 UTCGHSA enrichment
  4. 2026-08-30 01:22 UTCEPSS rescore
  5. 2026-08-28 21:42 UTCEPSS rescore
  6. 2026-08-27 21:47 UTCEG score recompute
  7. 2026-08-27 21:47 UTCVendor advisory
  8. 2026-08-27 21:47 UTCGHSA enrichment
  9. 2026-08-27 14:25 UTCEPSS rescore
  10. 2026-08-27 01:12 UTCEG score recompute
  11. 2026-08-27 01:12 UTCVendor advisory
  12. 2026-08-27 01:12 UTCGHSA enrichment
  13. 2026-08-26 14:46 UTCEPSS rescore
  14. 2026-08-26 03:55 UTCEG score recompute
  15. 2026-08-26 03:55 UTCVendor advisory
  16. 2026-08-26 03:55 UTCGHSA enrichment
  17. 2026-08-25 13:49 UTCEPSS rescore
  18. 2026-08-25 10:07 UTCVendor advisory
  19. 2026-08-25 10:07 UTCGHSA enrichment
  20. 2026-08-24 21:44 UTCEG score recompute
  21. 2026-08-24 21:44 UTCVendor advisory
  22. 2026-08-24 21:44 UTCGHSA enrichment
  23. 2026-08-24 10:23 UTCEG score recompute
  24. 2026-08-24 10:23 UTCVendor advisory
  25. 2026-08-24 10:23 UTCGHSA enrichment
Show 75 more
  1. 2026-08-23 23:05 UTCVendor advisory
  2. 2026-08-23 23:05 UTCGHSA enrichment
  3. 2026-08-23 11:21 UTCEG score recompute
  4. 2026-08-23 11:21 UTCVendor advisory
  5. 2026-08-23 11:21 UTCGHSA enrichment
  6. 2026-08-23 00:19 UTCEPSS rescore
  7. 2026-08-23 00:03 UTCVendor advisory
  8. 2026-08-23 00:03 UTCGHSA enrichment
  9. 2026-08-22 12:45 UTCVendor advisory
  10. 2026-08-22 12:45 UTCGHSA enrichment
  11. 2026-08-22 01:27 UTCEG score recompute
  12. 2026-08-22 01:27 UTCVendor advisory
  13. 2026-08-22 01:27 UTCGHSA enrichment
  14. 2026-08-21 23:49 UTCEPSS rescore
  15. 2026-08-21 14:09 UTCVendor advisory
  16. 2026-08-21 14:09 UTCGHSA enrichment
  17. 2026-08-21 02:42 UTCEG score recompute
  18. 2026-08-21 02:42 UTCVendor advisory
  19. 2026-08-21 02:42 UTCGHSA enrichment
  20. 2026-08-20 22:55 UTCEPSS rescore
  21. 2026-08-20 15:18 UTCVendor advisory
  22. 2026-08-20 15:18 UTCGHSA enrichment
  23. 2026-08-20 01:51 UTCEG score recompute
  24. 2026-08-20 01:51 UTCVendor advisory
  25. 2026-08-20 01:51 UTCGHSA enrichment
  26. 2026-08-19 17:04 UTCEPSS rescore
  27. 2026-08-19 10:24 UTCEG score recompute
  28. 2026-08-19 10:24 UTCVendor advisory
  29. 2026-08-19 10:24 UTCGHSA enrichment
  30. 2026-08-19 09:47 UTCEG score recompute
  31. 2026-08-19 09:47 UTCVendor advisory
  32. 2026-08-19 09:47 UTCGHSA enrichment
  33. 2026-08-19 04:20 UTCEG score recompute
  34. 2026-08-19 04:20 UTCVendor advisory
  35. 2026-08-19 04:20 UTCGHSA enrichment
  36. 2026-08-19 04:12 UTCEG score recompute
  37. 2026-08-19 04:12 UTCVendor advisory
  38. 2026-08-19 04:12 UTCGHSA enrichment
  39. 2026-08-18 22:27 UTCEG score recompute
  40. 2026-08-18 22:27 UTCVendor advisory
  41. 2026-08-18 22:27 UTCGHSA enrichment
  42. 2026-08-18 13:48 UTCEPSS rescore
  43. 2026-08-18 10:46 UTCVendor advisory
  44. 2026-08-18 10:46 UTCGHSA enrichment
  45. 2026-08-17 22:18 UTCEG score recompute
  46. 2026-08-17 22:18 UTCVendor advisory
  47. 2026-08-17 22:18 UTCGHSA enrichment
  48. 2026-08-17 13:47 UTCEPSS rescore
  49. 2026-08-17 08:26 UTCVendor advisory
  50. 2026-08-17 08:26 UTCGHSA enrichment
  51. 2026-08-16 21:08 UTCEG score recompute
  52. 2026-08-16 21:08 UTCVendor advisory
  53. 2026-08-16 21:08 UTCGHSA enrichment
  54. 2026-08-16 14:56 UTCEPSS rescore
  55. 2026-08-16 09:50 UTCEG score recompute
  56. 2026-08-16 09:50 UTCVendor advisory
  57. 2026-08-16 09:50 UTCGHSA enrichment
  58. 2026-08-16 02:14 UTCEPSS rescore
  59. 2026-08-15 22:33 UTCVendor advisory
  60. 2026-08-15 22:33 UTCGHSA enrichment
  61. 2026-08-15 11:15 UTCEG score recompute
  62. 2026-08-15 11:15 UTCVendor advisory
  63. 2026-08-15 11:15 UTCGHSA enrichment
  64. 2026-08-15 01:30 UTCEPSS rescore
  65. 2026-08-14 23:57 UTCVendor advisory
  66. 2026-08-14 23:57 UTCGHSA enrichment
  67. 2026-08-14 12:39 UTCVendor advisory
  68. 2026-08-14 12:39 UTCGHSA enrichment
  69. 2026-08-14 01:22 UTCEG score recompute
  70. 2026-08-14 01:22 UTCVendor advisory
  71. 2026-08-14 01:22 UTCGHSA enrichment
  72. 2026-08-14 00:24 UTCEG score recompute
  73. 2026-08-14 00:24 UTCVendor advisory
  74. 2026-08-14 00:24 UTCGHSA enrichment
  75. 2026-08-13 22:25 UTCEG score recompute

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-59691?
CVE-2026-59691 is a high vulnerability published on July 9, 2026. A heap buffer overflow vulnerability was found in GStreamer's rfbsrc plugin. When a client connects to a malicious RFB/VNC server that advertises a 16bpp framebuffer and sends Hextile-encoded updates, the Hextile background fill path writes 32-bit pixel values into a buffer allocated for 16-bit…
When was CVE-2026-59691 disclosed?
CVE-2026-59691 was first published in the National Vulnerability Database on July 9, 2026, with the most recent update on August 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-59691 actively exploited?
CVE-2026-59691 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 75.0% of all scored CVEs.
What is the CVSS score of CVE-2026-59691?
CVE-2026-59691 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-59691?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-59691, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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